Uwatec Aladin Pro Nitrox Owner's manual

Brand: Uwatec

Model: Aladin Pro Nitrox

Category: Scuba diving fins

Type: Owner's manual

This manual is also suitable for

Aladin Pro Ultra

OPERATING MANUAL

English

SWISS MADE BY UWATEC AG

THE SYSTEM

English

Active Light

PRO ULTRA

Uwatec

Aladin

Pro Ultra

Operating scheme

for surface functions

5sec

(or 3min)

(or 3min) (or 3min)

NO STOP

depth dive time

deco info

automatically

Sleep

Surface Sleep

Ready or

Surface

Input stage Input stage

Battery

capacity

LOGBOOK

DIVEPLAN

Input stage

DIVEPLAN

% MIX

(or 3min)

max. depth

B and E B and + B and –

Uwatec

Aladin

Pro Ultra

English

The following symbols are used in the operating manual:

Uwatec

Aladin

Pro Ultra

Indicates a potentially hazardous situation which, if not avoided, could result

in death or serious injury.

Danger!

This operating manual makes use of the following icons to indicate especially important comments:

Remarks: Informations and tips which are important for optimal use of the functions of

your Aladin

Pro Ultra.

Attention: Informations and tips which are important for optimal use of the functions of

your Aladin

Pro Ultra.

- + E

Operating instruction for manual input

Example: bridging contacts B and E

Flashing display

Acoustic alarm signal

Important remarks concerning signal words and symbols

January 2000, Copyright by Uwatec Switzerland

Safety considerations

Uwatec

Aladin

Pro Ultra

You must carefully read and understand this entire manual before using your Aladin

Pro Ultra.

Diving has many inherent risks. Even if you follow the instructions of this

manual in a careful manner, it is still possible that you may be seriously inju-

red or die from decompression sickness, oxygen toxicity or some other inhe-

rent risk of scuba Nitrox or compressed air. Unless you are fully aware of these

risks and are willing to personally accept and assume responsibility for those

risks, do not use the Aladin

Pro Ultra!

The Aladin

Pro Ultra is a decompression tool to assist a trained and certified diver in making decisions

concerning dive planning and execution. As with any tool, the Aladin

Pro Ultra may be misused if the fol-

lowing safety and operational precautions are not strictly followed. If they are followed, careful use of the

Aladin

Pro Ultra can increase your diving enjoyment and reduce your risk of decompression sickness. If

they are not, you will be placing yourself at serious risk for decompression sickness.

While the Aladin

Pro Ultra is a technically advanced tool based on mathematical models of decompres-

sion sickness and oxygen toxicity, neither it nor any other diving computer (or table) can actually monitor

the physiological changes that occur in your body as you dive. In addition, each diver will vary in his or her

susceptibility to decompression sickness. In addition, each diver will vary in his or her susceptibility to

decompression sickness. In addition to this, each individual diver‘s own susceptibility may vary from day to

day. Combined with the fact that decompression modelling is an inexact science, and must be based to

some extend on certain unproven assumptions, it is emphasis on you, the individual diver, to dive respon-

sibly and to carefully follow all standard safe diving practices as well as the recommendations contained

in this manual.

Guidelines for the use of Aladin

Pro Ultra:

The following guidelines for using Aladin

Pro Ultra are derived from the latest medical research for diving

with diving computers. Following these guidelines will greatly increase your safety while diving, but can-

not guarantee that decompression sickness will not occur.

– The Aladin

Pro Ultra is designed for dives with nitrox (max.50 %O

)and compressed air (21%O

) only.

Do not use the Aladin

Pro Ultra for dives made with other mixed gases. It is absolutely necessary to

check the set mixture before each dive and to compare it to the gas mixture actually used. Always

Safety considerations

Uwatec

Aladin

Pro Ultra

English

remember: Setting a wrong mixture carries an inhered risk of decompression sickness and/or oxygen

toxicity!

– It is essential to check the set mixture before each dive and to compare it to the gas mixture to be used.

Always remember: Setting a wrong mixture causes either insufficient decompression calculations or a

too low calculation of the oxygen-toxicity!

– Always check the diving limits considering the oxygen content and standard sports diving procedures

(decompression sickness, oxygen toxicity).

– Do not dive deeper than 40 metres.

– The danger of nitrogen narcosis has to be taken into consideration for all dives regardless of the gas mix-

ture. The Aladin

Pro Ultra gives no warning about this.

– On all dives with the Aladin

Pro Ultra, make a safety stop for at least one to three minutes within the

3 to 5 metre zone.

– Always make the deepest dive of the day first when repetitive dives are planned, and for each dive make

sure that the deepest portion of that dive is done at the beginning of the dive.

– All divers using dive computers to plan dives and indicate or determine decompression status must use

their own computer which they take with them on all dives.

– If the Aladin

Pro Ultra fails at any time during the dive, the dive must be terminated, and appropriate

surfacing procedures should be initiated immediately.

– On any given dive, all divers in a buddy group must follow the most conservative dive computer for that

particular dive.

– You should not dive for a period of twenty-four hours before activating the Pro Ultra (or any borrowed

or rented dive computer) to use it for diving.

– You MUST be familiar with all signs and symptoms of decompression sickness before using the Aladin

Pro Ultra! Seek IMMEDIATE treatment for decompression sickness should any of these signs or sym-

ptoms occur after a dive! There is a direct correlation between the effectiveness of treatment and the

delay between the onset of symptoms and the treatment for decompression sickness.

– Always observe the optical and acoustic alarm signals of the Aladin

Pro Ultra. Avoid situations of increa-

sed risk which are marked with a warning sign in this operating manual.

– See also page 11, 54, 55, 83.

Uwatec

Aladin

Pro Ultra

Aladin

Pro Ultra – The Diving System

- + E

MemoMouse and

logbook software

DataTrak (Option)

Screen Guard

(Optional: several colours)

Dive Computer

Aladin

Pro Ultra

Uwatec

Aladin

Pro Ultra

English

List of chapters

Aladin

Pro Ultra – Introduction ______9

1 Aladin

Pro Ultra – Introduction _________10

2 Aladin

Pro Ultra – More Safety in Diving _10

3 Safety Considerations ______________11, 12

4 Pro Ultra – Your Personal Companion ____13

5 The Calculation Model ZH-L8 ADT

5.1 Description _______________________14

5.2 Advantages ______________________15

6 Safety in Diving _______________________16

Aladin

Pro Ultra – The System _______17

1 Description___________________________18

2 Dive Computer

2.1 Operation ________________________19

Switching on display _______________19

Switching off display _______________19

Active backlight ___________________20

2.2 Operating the surface

functions _________________________21

2.3 Operating mode___________________26

Diving with Aladin

Pro Ultra ____________________________31

1 Terminology/Symbols __________________32

1.1 Display during no-stop phase ________32

1.2 Display during decompression phase__33

1.3 Nitrox information _________________34

2 Attention Messages and Alarms _________35

2.1 Attention messages ________________35

2.2 Alarms ___________________________37

2.3 Alarm low battery _________________38

3 Preparation for the Dive ________________39

3.1 Switching on______________________39

3.2 Setting gas mixture ________________40

4 Functions during the Dive ______________41

4.1 Dive time_________________________41

4.2 Current depth_____________________41

4.3 Maximum depth___________________41

4.4 Ascent rate _______________________42

4.5 Partial pressure of oxygen (ppO

)_____44

4.6 Oxygen toxicity (CNS O

%)__________45

4.7 Decompression information _________46

5 Functions at the Surface________________48

5.1 End of a dive _____________________48

5.2 Desaturation time _________________48

5.3 No fly time _______________________49

5.4 Warning of bubbles________________50

6 Diving in Mountain Lakes ___________51, 52

Diving at Reduced Risk with

Aladin

Pro Ultra ____________________53

1 Diving at Reduced Risk with

Aladin

Pro Ultra

1.1 Diving at reduced risk ______________54

1.2 Diving at reduced risk for the first dive 54

1.3 Minimizing risk on repetitive dives____55

1.4 Response in increased risk situation56-58

Logbook ____________________________59

1 Survey_______________________________60

2 Selection and Activation________________61

3 Selection of Dive ______________________62

III

Uwatec

Aladin

Pro Ultra

VII

4 Leaving the Logbook-Mode ____________63

5 Output on PC ________________________64

Dive Planner ________________________65

1 Survey_______________________________66

2 Selection and Activation from

Ready-Mode__________________________67

3 Selection and Activation from

Surface-Mode ________________________68

4 Planning a No-Stop Dive _______________69

5 Planning a Decompression Dive _________71

6 Planning a Nitrox-dive__________________72

6.1 Calculation of maximum depth ______72

6.2 Calculation of mixture for a

given depth __________________________73

7 Leaving the Diveplan-Mode _____________74

Communication Software

for Windows

_______________________75

1 MemoMouse, DataTrak and DataTalk

1.1 Personal programming of the

dive computer (DataTalk) ___________76

1.2 Analysis and storage of real

dives (DataTrak) ___________________76

1.3 Updates (DataTrak, DataTalk) ________76

Trouble Shooting ____________________77

1 Trouble Shooting ______________________78

Appendix ___________________________79

1 Maintenance of Aladin

Pro Ultra________80

List of chapters

2 Technical Information _________________81

3 Warranty ___________________________82

3.1 Ecognition of warranty _____________82

3.2 Scope of the warranty______________82

3.3 Warranty period and claim __________82

4 Safety considerations __________________83

5 Serial No. / Dealer address ______________84

VIII

Introduction

I Uwatec

Aladin

Pro Ultra

English

1 Aladin

Pro Ultra – Introduction ________________________________________ 10

2 Aladin

Pro Ultra – More Safety in Diving ________________________________________ 10

3 Safety Considerations _____________________________________ 11, 12

4 Aladin

Pro Ultra – Your Personal Companion ________________________________________ 13

5 The Calculation Model ZH-L8 ADT 5.1 Description _______________________________ 14

5.2 Advantages ______________________________ 15

6 Safety in Diving ________________________________________ 16

Aladin

Pro Ultra …

I Uwatec

Aladin

Pro Ultra

1 Introduction

What can further increase your diving pleasure?

The good feeling of having the highest possible

safety and freedom to move. A dive computer

which constantly controls the data of your dive and

your individual behaviour meets these require-

ments. Aladin

Pro Ultra watches over the nitrogen

and oxygen toxicity of your body without interrup-

tion. With Aladin

Pro Ultra you dive more safely

than ever before. In addition, Aladin

Pro Ultra

offers an unmatched comfort in carrying and ope-

ration. Aladin

Pro Ultra gives you increased safety

due to its calculation model.

2 More Safety in Diving

Nitrox is a gas mixture consisting of nitrogen and

oxygen. The kind of air used for diving with com-

pressed air is the same as the normal air of the

earth‘s atmosphere (78% nitrogen, 21% oxygen

and 1% inert gases). Therefore, normal air is also

Nitrox!

When talking of Nitrox as the breathing gas for

diving, it describes a mixture with a higher percen-

tage of oxygen. A higher percentage of oxygen

(and automatically the reduction of nitrogen) has

the advantage of lengthening the no-stop phase

(or reducing the decompression phase), since less

nitrogen is dissolved in the diver‘s body during the

dive.

The higher share of oxygen in the Nitrox-mixture

also causes additional physiological problems by

the toxic effects at a higher partial pressure of oxy-

gen (ppO

). When breathing oxygen at a higher

partial pressure, two kinds of oxygen toxicity can

occur:

• CNS damages:

Symptoms of poisoning occurring at short notice in

the central nervous system (CNS). Such symptom

are: irritations of the respiratory organs, sickness,

headache, pulmonary oedema, cramps, uncons-

ciousness. The symptoms occur at a ppO

essentially more than 1 bar and depend on the

length of exposure and on the partial pressure of

oxygen.

• Damages of the lungs:

Symptoms of pulmonary poisoning occuring in

the long run. The symptoms occur at a ppO

from

0.5 bar and higher and with terms of exposure in

the range of hours/days.

Aladin

Pro Ultra …

I Uwatec

Aladin

Pro Ultra

English

Aladin

Pro Ultra considers the short term toxic

effect of oxygen (CNS damages) by means of the so

called „oxygen-clock“. It is based on a list which

shows the units of toxicity for oxygen per unit of

time and is dependent on the ppO

. The indication

of toxicity is shown as „CNS O

%“ (= relative toxi-

city of oxygen for the central nervous system). CNS

= 0% corresponds to the normal state before

the first dive, and CNS O

= 100% corresponds to

the critical upper limit. The list, initially published by

the US Navy, is nowadays known by the name

IANTD-list. We modified this list for the use with

Aladin

Pro Ultra in cooperation with Dr. Bill

Hamilton, Hamilton Research Ltd. (Tarrytown, NY),

a well-known specialist.

The long term kind of oxygen poisoning has prac-

tically no relevance for diving with independent

diving equipment and is therefore not considered in

the design of Aladin

Pro Ultra.

If nitrox is used for diving profound additional trai-

ning is needed because of the physiological pecu-

liarities of oxygen and the changing decompression

due to the reduced percentage of nitrogen.

Additional technical problems with the use and the

maintenance of parts of the equipment are additio-

nal potential dangers when diving with nitrox.

Therefore, we recommend strict adherence to the

following guidelines.

3 Safety Considerations

1.Only dive with nitrox if you have been trained thoroughly by a recognised

agency.

2.Only use Aladin

Pro Ultra with open breathing systems. Aladin

Pro Ultra

must be set for a determined gas mixture. In partially-open and in closed cir-

culation-systems, the gas mixture can vary considerably. The calculations may

yield results different from those necessary for the actual mixture.

3.Only use Aladin

Pro Ultra for diving with an independent breathing appara-

tus. Aladin

Pro Ultra is not designed for long-term exposures with Nitrox.

Aladin

Pro Ultra …

I Uwatec

Aladin

Pro Ultra

4.Aladin

Pro Ultra always calculates considering the gas mixture set by the

user. It is essential to check the mixture calculation before each dive and to

compare it to the gas mixture to be used. Maximum deviation from the mix-

ture calculation must not exceed 1% O

. A wrong gas mixture can be lethal!

5.Aladin

Pro Ultra has a pp

-warning, the default-limits of which are set at

1.5 bar pp

max. This limit can be adjusted via MemoMouse/Data Talk in the

range of 1.2 to 1.95 bar. An alternation of the pp

max to higher than 1.6

bar is risky and is not recommended.

6.Frequently check the „oxygen-clock“ (CNS

%), especially when the pp

greater than 1.5 bar. Finish the dive if the CNS

% exceeds 75%.

7.Make sure you have a sufficiently long surface interval, just as when diving

with compressed air. Oxygen also needs sufficient time to leave the body. Go

on the next dive only when the CNS

% has dropped below 40%.

8.Aladin

Pro Ultra is a personal instrument like any other diving computer. This

still applies when diving with compressed air (21% oxygen) between two

nitrox-dives. Aladin

Pro Ultra can be adjusted to compressed air and then

also includes the calculation of the CNS

% in the same way as with any

other nitrox-dive.

9.Always remember: setting a wrong mixture causes either insufficient decom-

pression calculations or a too low calculation of the oxygen-toxicity!

4 Aladin

Pro Ultra - Your Personal Companion

I Uwatec

Aladin

Pro Ultra

English

Aladin

Pro Ultra considers your individual gas mix-

ture, depth and time profile and water temperatu-

re. Relying on the latest results of medical and phy-

siological research for its decompression modelling,

the Aladin

Pro Ultra differs from earlier diving

computers in a number of significant ways:

• The ZH-L8 ADT decompression calculation model

considers eight body tissues as well as ambient

temperature. This allows for a more precise cal-

culation of a modelled risk for decompression

sickness which can lead to greater diving safety.

• The Aladin

Pro Ultra uses both optical and acou-

stic alarms. The acoustic alarm uses varied sound

signals to assist in identifying the reason for the

alarm.

You must strictly observe all optical

and acoustic alarms and take

appropriate action based upon

those alarms to avoid serious injury

or death from decompression

sickness!

• By using the Aladin

Pro Ultra‘s logbook, a diver

may directly call up information from the last 19

dives. The last 37 dives and 200 minutes of dive

profile in intervals of 20 seconds can be read out

into a MemoMouse, which can be later interfaced

with a personal computer (Windows

). The

MemoMouse can store up to 66 hours of diving

data.

• The dive planner allows the advance planning of

no stop dives and decompression dives with rea-

dily determinable surface intervals.

• The Aladin

Pro Ultra is designed to be mounted

on the diver‘s left or right wrist, which offers the

maximum freedom of movement as well as easy

operation and use.

5 The Calculation Model ZH-L8 ADT

I Uwatec

Aladin

Pro Ultra

5.1 Description

The Aladin

Pro Ultra uses a new decompression

calculation model known as the ZH-L8 ADT. This

model uses eight compartments or “tissue“ groups

with nominal half time periods from 5 to 640 minu-

tes. This model differs considerably from other

models by its consideration of the following addi-

tional physiological processes:

1.Blood perfusion to the body‘s organs is not con-

stant. Skin and muscle tissues are in particular

subject to changes in blood perfusion, depending

on temperature. Changes in blood perfusion to

these organs change their nitrogen saturation

tolerance. The model used by the Aladin

Pro

Ultra takes these effects into account and thus

the “skin“ and “muscle“ compartments in the

Aladin

Pro Ultra show variable half-time periods

and saturation tolerances.

Decompression information is calculated accor-

ding to the diver‘s individual behaviour and

decrease in skin temperature. The decrease in

skin temperature is based upon the water tem-

perature and the dive time. By considering these

changes in saturation, the time that must be

spent at the surface prior to flying may be consi-

derably increased, depending upon the depth,

time, and temperature of a dive, as well as the

diver‘s behaviour during that dive.

2.The decompression model used by the Aladin

Pro Ultra considers nitrogen in both its dissolved

as well as its gaseous phase (microbubbles).

Formation of microbubbles is considered to be a

strong indicator of a high risk of decompression

sickness. The Aladin

Pro Ultra model calculates

the formation of microbubbles depending on

various assumed influences in arterial and venous

blood. In normal, slow ascents, microbubbles

form mainly in venous blood. During fast ascents,

microbubbles may also form in arterial blood and

in the body‘s tissues as well. If a particular dive

profile may result in the creation of microbubbles

according to the Aladin

Pro Ultra‘s model,

decreased bottom time and/or increased decom-

pression times as well as increased “no fly“ time

will be indicated.

• Microbubbles can form if the diver makes too

fast an ascent, ignores required decompression

stops, or makes repeated ascents during a dive

(yo-yo diving). These microbubbles can form in

arterial blood as well as in the body‘s tissues. If

these microbubbles partially impair circulation,

the rate of gas diffusion and saturation tolerance

for those tissues immediately surrounding this

area of impaired circulation are changed. If requi-

red decompression time will be adjusted in such

a way that already existing microbubbles will stop

growing. Increased decompression time will also

assist those local areas of impaired circulation to

5 The Calculation Model ZH-L8 ADT

I Uwatec

Aladin

Pro Ultra

English

desaturate with less risk of decompression sickn-

ess.

• The calculation of microbubbles results in altered

ascent instructions. If microbubbles are assumed

to be present based on the data used by the

Aladin

Pro Ultra, the ascent rate to the surface is

reduced to 7 metres/minute. This will help pre-

vent the formation of microbubbles in the arteri-

al circulation and minimizes formation of micro-

bubbles in the venous circulation after the dive.

5.2 Advantages

On the first dives following responsible diving pro-

cedures, a diver using the Aladin

Pro Ultra should

never require decompression stops, although a one

to three minute safety stop between 3 and 5 met-

res is recommended for every dive. If, however,

unplanned circumstances arise during the dive

which increase the risk of decompression, the

Aladin

Pro Ultra can, if closely followed, reduce

the risk of decompression sickness by increasing

decompression time. Some of the more common

risk situations are as follows:

• Repetitive dives, especially those deeper than 20

metres and those with short surface intervals.

• Repetitive diving over the course of several suc-

cessive days.

• Diving with increased workloads.

• Yo-yo diving (repeated descents and ascents to

the surface during a given dive).

• Flying within 24 hours after diving.

• Excessive ascent rate.

If a diver experiences any of these risk factors while

diving, the Aladin

Pro Ultra will add required

decompression time in order to help minimize the

risk of decompression sickness.

If signs or symptoms of decompres-

sion sickness occur after diving

with Aladin

Pro Ultra, seek IMME-

DIATE treatment at the nearest

recompression facility.

With its new decompression model the Aladin

Pro

Ultra is an extremely versatile tool which can increa-

se your diving comfort and safety. As with any

diving tool, however, ultimate responsibility for

diving safety remains with the individual diver. The

same responsible diving practices taught by all

diving certification agencies are still absolutely

necessary in order to safely dive with the Aladin

Pro Ultra.

Certain mistakes which may be made by a diver,

such as ascending at an excessive rate, going too

deep, or staying too long at depth, may be overco-

me if the diver carefully follows the Aladin

Pro

Ultra‘s corrected ascent instructions. Of course, the

Aladin

Pro Ultra can do nothing to prevent the

occurrence of lung overexpansion injuries or nitro-

gen narcosis, whose avoidance lies solely with the

individual diver. The Aladin

Pro Ultra is a highly

6 Safety in Diving

I Uwatec

Aladin

Pro Ultra

sophisticated technical instrument which, if used

and maintained properly, will have high reliability.

Despite this no dive should be made with an

Aladin

Pro Ultra without a thorough understan-

ding of decompression theory and dive table use,

and every diver must have a set of decompression

tables with him on every dive.

Do not use the Aladin

Pro Ultra

without a set of accepted nitrox

diving tables with you as a back up

decompression tool on every dive.

Should decompression sickness occur, whether the

Aladin

Pro Ultra was used correctly or not, a detai-

led history of the previous dives may be used to

allow a better diagnosis and the most effective tre-

atment for the diver.

Aladin

Pro Ultra – The System

II Uwatec

Aladin

Pro Ultra

English

1 Description ________________________________________ 18

2 Dive Computer 2.1 Operation _______________________________ 19

Switching on display_______________________ 19

Switching off display ______________________ 19

Active backlight __________________________ 20

2.2 Operating the surface functions ____________ 21

2.3 Operating mode __________________________ 26

1 Description

II Uwatec

Aladin

Pro Ultra

The Aladin

Pro Ultra system consists of two units:

1 The dive computer displays the dive and decompression data.

2 The dive computer has a data memory which stores the dive

data. The data can be downloaded out into a MemoMouse

from where they can be transmitted to a Windows

personal

computer with the logbook program DataTrak. MemoMouse

and DataTrak are available as an option.

depth dive time

max. depth deco info

CNS O

LIMIT

NO STOP

Screen Guard

(Optional: several colours)

2 Dive Computer

II Uwatec

Aladin

Pro Ultra

English

2.1 Operation

Switching on display:

– automatically, on submerging in water or when adaptation to atmospheric

pressure is necessary.

– manually by manipulating contacts on housing.

Switching off display: – automatically, after three minutes without operation.

The Aladin

Pro Ultra has 4 operating contacts B, E, +, – on the outside of the housing. For manual ope-

ration, touch base contact B and any one of the other three contacts above the display with moistened

fingers.

Contact B:

Base contact, which has to be touched for all operations.

Contact E:

Enter contact. It serves to switch on the computer, to activate the logbook and

dive-plan mode and to switch between no-stop and decompression planning.

It is also used to confirm inputs and is therefore comparable to the ENTER- or

RETURN-key of a computer.

+ / – contacts:

They initiate the selection of the logbook and dive-plan as well as the setting

of values (time, depth, dive-number, O

% mix etc.).

- + E

2 Dive Computer

II Uwatec

Aladin

Pro Ultra

Active backlight

The display of the Aladin

Pro Ultra can be illuminated both on the surface and underwater.

The backlight can be switched on by pressing the unit above the display.

The light will turn off automatically after 7 seconds.

The backlight can only be activated if the computer display is on.

• The active backlight is no substitute for a dive

torch. When diving at night or at increased

depth we recommend the use of a dive torch.

• Replace the battery if the battery warning

appears. See page 38.

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Uwatec Aladin Pro Nitrox Owner's manual

Brand: Uwatec

Model: Aladin Pro Nitrox

Category: Scuba diving fins

Type: Owner's manual

This manual is also suitable for

Aladin Pro Ultra

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Uwatec Aladin Pro Nitrox Owner's manual

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